#region Imports
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Windows.Forms;
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#endregion
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namespace DPumpHydr.WinFrmUI.RLT.Controls
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{
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#region NightTextBox
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[DefaultEvent("TextChanged")]
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public class NightTextBox : Control
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{
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#region Fields
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private readonly TextBox tbCtrl = new();
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private Color BorderColor;
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private Panel watermarkContainer;
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#endregion
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#region Properties
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[Browsable(true)]
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[Description("Decides whether the top and bottom border lines are recolored on Enter event.")]
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public bool ColorBordersOnEnter { get; set; } = true;
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private Image _Image;
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[Browsable(true)]
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[Description("The image displayed in the TextBox.")]
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public Image Image
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{
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get => _Image;
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set
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{
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_Image = value;
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ImageSize = value == null ? Size.Empty : value.Size;
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tbCtrl.Location = new(24, 14);
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Invalidate();
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}
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}
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protected Size ImageSize { get; private set; }
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private int _MaxLength = 32767;
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[Browsable(true)]
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[Description("Specifies the maximum number of characters that can be entered into the edit control.")]
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public int MaxLength
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{
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get => _MaxLength;
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set
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{
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_MaxLength = value;
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tbCtrl.MaxLength = MaxLength;
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Invalidate();
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}
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}
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private bool _Multiline;
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[Browsable(true)]
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[Description("Controls whether the text of the edit control can span more than one line.")]
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public bool Multiline
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{
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get => _Multiline;
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set
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{
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_Multiline = value;
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if (tbCtrl != null)
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{
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tbCtrl.Multiline = value;
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if (value)
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{
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tbCtrl.Height = Height - 10;
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}
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else
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{
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Height = tbCtrl.Height + 10;
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}
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}
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}
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}
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private bool _ReadOnly;
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[Browsable(true)]
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[Description("Controls whether the text in the edit control can be changed or not.")]
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public bool ReadOnly
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{
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get => _ReadOnly;
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set
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{
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_ReadOnly = value;
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if (tbCtrl != null)
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{
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tbCtrl.ReadOnly = value;
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}
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}
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}
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private bool _ShortcutsEnabled = true;
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[Browsable(true)]
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[Description("Indicates whether shortcuts defined for the control are enabled.")]
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public bool ShortcutsEnabled
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{
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get => _ShortcutsEnabled;
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set
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{
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_ShortcutsEnabled = value;
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tbCtrl.ShortcutsEnabled = value;
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}
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}
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private bool _ShowBottomBorder = true;
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[Browsable(true)]
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[Description("Decides whether the bottom border line should be drawn.")]
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public bool ShowBottomBorder
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{
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get => _ShowBottomBorder;
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set
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{
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_ShowBottomBorder = value;
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Invalidate();
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}
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}
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private bool _ShowTopBorder = true;
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[Browsable(true)]
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[Description("Decides whether the top border line should be drawn.")]
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public bool ShowTopBorder
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{
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get => _ShowTopBorder;
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set
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{
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_ShowTopBorder = value;
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Invalidate();
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}
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}
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private HorizontalAlignment _TextAlignment;
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[Browsable(true)]
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[Description("Indicates how the text should be aligned for edit controls.")]
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public HorizontalAlignment TextAlignment
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{
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get => _TextAlignment;
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set
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{
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_TextAlignment = value;
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tbCtrl.TextAlign = _TextAlignment;
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Invalidate();
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}
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}
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private bool _UseSystemPasswordChar = false;
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[Browsable(true)]
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[Description("Indicates if the text in the edit control should appear as the default password character.")]
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public bool UseSystemPasswordChar
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{
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get => _UseSystemPasswordChar;
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set
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{
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_UseSystemPasswordChar = value;
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tbCtrl.UseSystemPasswordChar = UseSystemPasswordChar;
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Invalidate();
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}
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}
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private string _Watermark = string.Empty;
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[Browsable(true)]
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[Description("Allows adding a watermark to the TextBox field when it is empty.")]
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public string Watermark
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{
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get => _Watermark;
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set
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{
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_Watermark = value;
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Invalidate();
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}
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}
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private Color _WatermarkColor;
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[Browsable(true)]
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[Description("Allows adding a watermark to the TextBox field when it is empty.")]
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public Color WatermarkColor
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{
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get => _WatermarkColor;
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set
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{
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_WatermarkColor = value;
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Invalidate();
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}
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}
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private Color _ActiveBorderColor = ColorTranslator.FromHtml("#F25D59");
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[Browsable(true)]
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[Description("Actived TextBox border line color.")]
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public Color ActiveBorderColor
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{
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get => _ActiveBorderColor;
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set
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{
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_ActiveBorderColor = value;
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Invalidate();
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}
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}
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private Color _DisableBorderColor = ColorTranslator.FromHtml("#3C3F50");
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[Browsable(true)]
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[Description("Disabled TextBox border line color.")]
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public Color DisableBorderColor
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{
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get => _DisableBorderColor;
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set
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{
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_DisableBorderColor = value;
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BorderColor = value;
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Invalidate();
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}
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}
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private Color _BaseBackColor = ColorTranslator.FromHtml("#2B3043");
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[Browsable(true)]
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[Description("TextBox is change BackColor.")]
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public Color BaseBackColor
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{
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get => _BaseBackColor;
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set
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{
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_BaseBackColor = value;
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Invalidate();
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}
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}
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#endregion
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#region EventArgs
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private void TextBox_Click(object sender, EventArgs e)
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{
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OnClick(e);
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}
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private void TextBox_Enter(object sender, EventArgs e)
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{
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if (ColorBordersOnEnter)
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{
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BorderColor = _ActiveBorderColor;
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}
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if (tbCtrl.TextLength <= 0)
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{
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RemoveWatermark();
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DrawWatermark();
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}
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Invalidate();
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}
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private void TextBox_Leave(object sender, EventArgs e)
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{
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if (ColorBordersOnEnter)
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{
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BorderColor = _DisableBorderColor;
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}
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if (tbCtrl.TextLength <= 0)
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{
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RemoveWatermark();
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}
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else
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{
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Invalidate();
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}
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Invalidate();
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}
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private void TextBox_KeyDown(object sender, KeyEventArgs e)
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{
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if (e.Control && e.KeyCode == Keys.A)
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{
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tbCtrl.SelectAll();
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e.SuppressKeyPress = true;
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}
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if (e.Control && e.KeyCode == Keys.C)
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{
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tbCtrl.Copy();
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e.SuppressKeyPress = true;
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}
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OnKeyDown(e);
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}
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private void TextBox_KeyUp(object sender, KeyEventArgs e)
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{
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OnKeyUp(e);
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}
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private void TextBox_KeyPress(object sender, KeyPressEventArgs e)
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{
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OnKeyPress(e);
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}
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public void TextBox_TextChanged(object sender, EventArgs e)
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{
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Text = tbCtrl.Text;
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if (tbCtrl.TextLength > 0)
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{
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RemoveWatermark();
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}
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else
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{
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DrawWatermark();
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}
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}
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private void WatermarkContainer_Click(object sender, EventArgs e)
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{
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tbCtrl.Focus();
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}
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private void WatermarkContainer_Paint(object sender, PaintEventArgs e)
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{
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// X has to be >=1, otherwise the cursor won't show
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watermarkContainer.Location = new(1, -1);
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watermarkContainer.Anchor = AnchorStyles.Left | AnchorStyles.Right;
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watermarkContainer.Width = tbCtrl.Width - 25;
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watermarkContainer.Height = tbCtrl.Height;
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using SolidBrush watermark = new(_WatermarkColor);
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e.Graphics.DrawString(_Watermark, Font, watermark, new PointF(-3.0f, 1.0f));
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}
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protected override void OnFontChanged(EventArgs e)
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{
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base.OnFontChanged(e);
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tbCtrl.Font = Font;
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}
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protected override void OnForeColorChanged(EventArgs e)
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{
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base.OnForeColorChanged(e);
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tbCtrl.ForeColor = ForeColor;
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Invalidate();
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}
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protected override void OnGotFocus(EventArgs e)
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{
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base.OnGotFocus(e);
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tbCtrl.Focus();
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}
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protected override void OnPaintBackground(PaintEventArgs e)
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{
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base.OnPaintBackground(e);
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}
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protected override void OnResize(EventArgs e)
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{
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base.OnResize(e);
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if (_Multiline)
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{
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tbCtrl.Height = Height - 30;
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}
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else
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{
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Height = tbCtrl.Height + 32;
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}
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}
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protected override void OnTextChanged(EventArgs e)
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{
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base.OnTextChanged(e);
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tbCtrl.Text = Text;
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}
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protected override void OnInvalidated(InvalidateEventArgs e)
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{
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base.OnInvalidated(e);
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if (watermarkContainer != null)
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{
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watermarkContainer.Invalidate();
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}
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}
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#endregion
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public NightTextBox()
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{
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SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.UserPaint, true);
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DoubleBuffered = true;
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_WatermarkColor = ColorTranslator.FromHtml("#747881");
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watermarkContainer = null;
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AddTextBox();
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DrawWatermark();
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BorderColor = ColorTranslator.FromHtml("#3C3F50");
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BackColor = ColorTranslator.FromHtml("#2B3043");
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Text = string.Empty;
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Font = new("Segoe UI", 10);
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Size = new(145, 49);
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}
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private void AddTextBox()
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{
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tbCtrl.Size = new(Width - 10, 49);
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tbCtrl.Location = new(24, 14);
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tbCtrl.BorderStyle = BorderStyle.None;
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tbCtrl.TextAlign = HorizontalAlignment.Left;
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tbCtrl.Font = new("Segoe UI", 10);
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tbCtrl.UseSystemPasswordChar = _UseSystemPasswordChar;
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tbCtrl.ShortcutsEnabled = _ShortcutsEnabled;
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tbCtrl.Multiline = false;
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tbCtrl.BackColor = BaseBackColor;
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ForeColor = ColorTranslator.FromHtml("#7F838C");
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tbCtrl.TextChanged += TextBox_TextChanged;
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tbCtrl.KeyDown += TextBox_KeyDown;
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tbCtrl.KeyPress += TextBox_KeyPress;
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tbCtrl.KeyUp += TextBox_KeyUp;
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tbCtrl.Click += TextBox_Click;
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tbCtrl.Enter += TextBox_Enter;
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tbCtrl.Leave += TextBox_Leave;
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Controls.Add(tbCtrl);
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}
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private void DrawWatermark()
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{
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if (watermarkContainer != null || tbCtrl.TextLength > 0)
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{
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return;
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}
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watermarkContainer = new Panel();
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watermarkContainer.Paint += WatermarkContainer_Paint;
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watermarkContainer.Click += WatermarkContainer_Click;
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tbCtrl.Controls.Add(watermarkContainer);
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}
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private void RemoveWatermark()
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{
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if (watermarkContainer == null)
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{
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return;
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}
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tbCtrl.Controls.Remove(watermarkContainer);
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watermarkContainer = null;
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}
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private void DrawBorder(Graphics g)
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{
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using Pen border = new(BorderColor);
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// Top border
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if (_ShowTopBorder)
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{
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g.DrawLine(border, 0, 0, Width - 1, 0);
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g.DrawLine(border, 0, 1, Width - 1, 1);
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}
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// Bottom border
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if (_ShowBottomBorder)
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{
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g.DrawLine(border, 0, Height - 2, Width - 1, Height - 2);
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g.DrawLine(border, 0, Height - 1, Width - 1, Height - 1);
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}
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}
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private void DrawImage(Graphics g)
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{
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if (Image == null)
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{
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tbCtrl.Width = Width - 35;
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}
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else
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{
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tbCtrl.Location = new(48, tbCtrl.Location.Y);
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tbCtrl.Width = Width - 59;
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g.DrawImage(_Image, 23, 14, 16, 16);
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}
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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Graphics g = e.Graphics;
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DrawWatermark();
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DrawBorder(g);
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DrawImage(g);
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tbCtrl.BackColor = BaseBackColor;
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base.OnPaint(e);
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}
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}
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#endregion
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}
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